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Books by Popovich, Igor S.

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How to Use, Calibrate, Repair and Upgrade Vacuum Tube Testers
🇺🇸 United States
How to Use, Calibrate, Repair and Upgrade Vacuum Tube Teste…
By: Popovich, Igor S.
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Audiophile Vacuum Tube Amplifiers - Design, Construction, Testing, Repairing & Upgrading, Volume 1
🇺🇸 United States
Audiophile Vacuum Tube Amplifiers - Design, Construction, T…
By: Popovich, Igor S.
View Details